Question

15/16:5/8•1 1/9=? 4 9/38•5/23:7/19=? Хелп плис

Answer 1

Відповідь:

1. 5/3

2. 5/2

Покрокове пояснення:

1. 15/16 : 5/8 × 1 1/9 = 15/16 × 8/5 × 10/9 = 3/2 × 10/9 = 5/3

2. 4 9/38 × 5/23 : 7/19 = 161/38 × 5/23 × 19/7 = 7/2 × 5 × 1/7 = 1/2 × 5 = 5/2

Answer 2

Ответ:

2,912419388391928e-4

Answer 3

Let's break down each expression step by step:

1. 15/16 ÷ 5/8 × 1 To divide fractions, we multiply the first fraction by the reciprocal of the second fraction. 15/16 ÷ 5/8 is the same as 15/16 × 8/5. Multiplying the numerators and denominators gives us: (15 × 8) / (16 × 5) = 120/80. Simplifying the fraction, we get: 120/80 = 3/2.

Therefore, 15/16 ÷ 5/8 × 1 equals 3/2.

2. 4 9/38 × 5/23 ÷ 7/19 When multiplying mixed numbers, it's best to convert them to improper fractions. 4 9/38 can be written as (4 × 38 + 9)/38 = 161/38.

Now we have: 161/38 × 5/23 ÷ 7/19. To divide fractions, we multiply the first fraction by the reciprocal of the second fraction. 161/38 × 5/23 ÷ 7/19 is the same as 161/38 × 5/23 × 19/7. Multiplying the numerators and denominators gives us: (161 × 5 × 19) / (38 × 23 × 7) = 161/38.

Therefore, 4 9/38 × 5/23 ÷ 7/19 equals 161/38.

I hope this helps! Let me know if you have any further questions.